1 files changed, 52 insertions, 1 deletions
diff --git a/src/plugins/platforms/ios/qiosglobal.mm b/src/plugins/platforms/ios/qiosglobal.mm
index 0a6bc5bb62..25ccf2961b 100644
--- a/src/plugins/platforms/ios/qiosglobal.mm
+++ b/src/plugins/platforms/ios/qiosglobal.mm
@@ -13,6 +13,7 @@ QT_BEGIN_NAMESPACE
 Q_LOGGING_CATEGORY(lcQpaApplication, "qt.qpa.application");
 Q_LOGGING_CATEGORY(lcQpaInputMethods, "qt.qpa.input.methods");
 Q_LOGGING_CATEGORY(lcQpaWindow, "qt.qpa.window");
+Q_LOGGING_CATEGORY(lcQpaWindowScene, "qt.qpa.window.scene");
 
 bool isQtApplication()
 {
@@ -29,6 +30,15 @@ bool isQtApplication()
     return isQt;
 }
 
+bool isRunningOnVisionOS()
+{
+    static bool result = []{
+        // This class is documented to only be available on visionOS
+        return NSClassFromString(@"UIWindowSceneGeometryPreferencesVision");
+    }();
+    return result;
+}
+
 #ifndef Q_OS_TVOS
 Qt::ScreenOrientation toQtScreenOrientation(UIDeviceOrientation uiDeviceOrientation)
 {
@@ -85,6 +95,47 @@ int infoPlistValue(NSString* key, int defaultValue)
     return value ? [value intValue] : defaultValue;
 }
 
+UIWindow *presentationWindow(QWindow *window)
+{
+    UIWindow *uiWindow = window ? reinterpret_cast<UIView *>(window->winId()).window : nullptr;
+    if (!uiWindow) {
+        auto *scenes = [qt_apple_sharedApplication().connectedScenes allObjects];
+        if (scenes.count > 0) {
+            auto *windowScene = static_cast<UIWindowScene*>(scenes[0]);
+            uiWindow = windowScene.keyWindow;
+            if (!uiWindow && windowScene.windows.count)
+                uiWindow = windowScene.windows[0];
+        }
+    }
+    return uiWindow;
+}
+
+UIView *rootViewForScreen(QScreen *screen)
+{
+    const auto *iosScreen = static_cast<QIOSScreen *>(screen->handle());
+    for (UIScene *scene in [qt_apple_sharedApplication().connectedScenes allObjects]) {
+        if (![scene isKindOfClass:UIWindowScene.class])
+            continue;
+
+        auto *windowScene = static_cast<UIWindowScene*>(scene);
+
+#if !defined(Q_OS_VISIONOS)
+        if (windowScene.screen != iosScreen->uiScreen())
+            continue;
+#else
+        Q_UNUSED(iosScreen);
+#endif
+
+        UIWindow *uiWindow = windowScene.keyWindow;
+        if (!uiWindow && windowScene.windows.count)
+            uiWindow = windowScene.windows[0];
+
+        return uiWindow.rootViewController.view;
+    }
+
+    return nullptr;
+}
+
 QT_END_NAMESPACE
 
 // -------------------------------------------------------------------------
@@ -119,7 +170,7 @@ QT_END_NAMESPACE
 
 @implementation UIResponder (QtFirstResponder)
 
-+ (id)currentFirstResponder
++ (id)qt_currentFirstResponder
 {
     if (qt_apple_isApplicationExtension()) {
         qWarning() << "can't get first responder in application extensions!";